Ukuphathwa kwamandla kwezixhumi ze-RF coaxial kuzoncipha njengoba imvamisa yesignali ikhula. Ukushintsha kwemvamisa yesignali yokudlulisa kuholela ngqo ekushintsheni kokulahlekelwa kanye nesilinganiso samagagasi okuma kwe-voltage, okuthinta amandla okudlulisa kanye nomphumela wesikhumba. Isibonelo, ukuphathwa kwamandla kwesixhumi se-SMA esijwayelekile ku-2GHz cishe kungama-500W, kanti ukuphathwa kwamandla okumaphakathi ku-18GHz kungaphansi kuka-100W.
Ukuphathwa kwamandla okukhulunywe ngakho ngenhla kubhekisela emandleni egagasi aqhubekayo. Uma amandla okufaka eqhutshwa ngamandla, ukuphathwa kwamandla kuzoba phezulu. Njengoba izizathu ezingenhla ziyizici ezingaqinisekile futhi zizothintana, ayikho ifomula engabalwa ngqo. Ngakho-ke, inkomba yenani lamandla ngokuvamile ayinikezwa izixhumi ngazinye. Kuphela ezinkombeni zobuchwepheshe zamadivayisi angasebenzi e-microwave njenge-attenuators kanye nemithwalo lapho amandla wamandla kanye nenkomba yamandla ephezulu esheshayo (engaphansi kwama-5μs) izolinganiswa khona.
Qaphela ukuthi uma inqubo yokudlulisa ingahambisani kahle futhi igagasi elimile likhulu kakhulu, amandla athwalwa kusixhumi angase abe makhulu kunamandla okufaka. Ngokuvamile, ngenxa yezizathu zokuphepha, amandla alayishwe kusixhumi akufanele adlule ingxenye eyodwa kwezimbili yamandla alo anqunyelwe.
Amagagasi aqhubekayo ayaqhubeka ku-axis yesikhathi, kuyilapho amagagasi e-pulse engaqhubeki ku-axis yesikhathi. Isibonelo, ukukhanya kwelanga esikubonayo kuyaqhubeka (ukukhanya kuyigagasi elivamile le-electromagnetic), kodwa uma ukukhanya ekhaya lakho kuqala ukukhanya, kungabhekwa njengokufana nama-pulse.
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Isikhathi sokuthunyelwe: Novemba-08-2024
